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[PMID]: 28960848
[Au] Autor:Almeida MH; Ceschim GV; Iorio NLPP; Póvoa HCC; Cajazeira MRR; Gumaraes GS; Antunes LS; Antunes LAA
[Ad] Address:DDS, MSc Student, Posgraduate Program in Clinical Dentistry, Faculty of Dentistry, Federal Fluminense University (UFF), Niterói, Rio de Janeiro, Brazil.
[Ti] Title:Influence of thickness, color and polishing process of ethylene-vinyl-acetate sheets on surface roughness and microorganism adhesion.
[So] Source:Dent Traumatol;, 2017 Sep 28.
[Is] ISSN:1600-9657
[Cp] Country of publication:Denmark
[La] Language:eng
[Ab] Abstract:BACKGROUND/AIM: The surface roughness of dental materials can make cleaning difficult, thus facilitating retention of food debris and accumulation of microorganisms. The aim of this study was to assess whether thickness, color and the polishing process influence the surface roughness of ethylene-vinyl-acetate (EVA) sheets and the amount of microorganisms that adhere to them. MATERIALS AND METHODS: A total of 180 samples of EVA (5x5mm) were divided into nine groups according to thickness (G1 = 2 mm; G2 = 3 mm; and G3 = 4 mm), color (G4 = black and G5 = white) and type of polishing (G6 = Scheu ; G7 = Scheu associated with hot-air burner; G8 = Erkodent and G9 = Erkodent associated with hot-air burner). Mean value of three roughness parameters was assessed: Ra, Rq and Rz (one-way ANOVA test and Tukey's test. P < 0.05). Seven samples of each group (n = 63) were inoculated with saliva for two hours in order to promote microbial adhesion and count the number of colony forming units (CFUs) (one-way ANOVA test, P < 0.05). Scanning electronic microscopy (SEM) of microbial adhesion and the effects of the polishing process on the surface was assessed. RESULTS: Only the polishing parameter presented less roughness (G2, G7 and G9;P<0.05) as also observed on SEM. SEM characterized microbial adhesion but the CFU count was not statistically significant, independent of the assessed parameters. CONCLUSION: The polishing systems, Scheu and Erkodent in association with a hot-air burner were effective in decreasing the surface roughness without influencing the amount of adhered microorganisms. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/edt.12374

  2 / 310937 MEDLINE  
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[PMID]: 28960804
[Au] Autor:Zhang Y; Li Y; Shi C; Fu X; Zhao L; Song Y
[Ad] Address:Department of Immunotherapy, Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China.
[Ti] Title:Angiotensin-(1-7)-mediated Mas1 receptor/NF-κB-p65 signaling is involved in a cigarette smoke-induced chronic obstructive pulmonary disease mouse model.
[So] Source:Environ Toxicol;, 2017 Sep 28.
[Is] ISSN:1522-7278
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Angiotensin-(1-7) [Ang-(1-7)] has been shown to play a significant role in the pathogenesis of lung inflammation via Mas receptor; however, its effect in chronic obstructive pulmonary disease (COPD) remains unknown. To explore the effect of Ang-(1-7) on a cigarette smoke (CS) exposure-induced COPD model, 40 C57BL/6J mice were divided into four groups (n = 10) and exposed to air or CS for 8 weeks. After that, they were treated with saline or Ang-(1-7) at 0.3 mg/kg for 2 weeks by subcutaneous infusion using osmotic pump. The day following drug/vehicle challenge, lung function was examined and bronchoalveolar lavage (BAL) was performed. Chemokine (C-X-C motif) ligand 1, interleukin-6, and tumor necrosis factor-α protein levels in BAL fluid were determined using ELISA; the corresponding mRNA levels in lung tissues were measured using RT-PCR. Mas1 receptor, pIκBα, IκBα, nuclear NF-κB-p65 protein, pERK1/2, ERK2, pp38, and p38 proteins expression in lung tissues were examined by immunohistochemical staining and western blotting. Ang-(1-7) challenge had no effect on the decreased lung function and emphysema induced by CS exposure. However, Ang-(1-7) treatment blocked CS exposure-induced lung inflammatory responses and lung fibrosis, as determined by Masson's Trichrome staining. Exposure to CS for 8 weeks caused irreversible loss of lung function and emphysema, which could not be reversed by Ang-(1-7) treatment. Thus, the beneficial effect of Ang-(1-7) may be confined to pulmonary inflammation and fibrosis.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1002/tox.22454

  3 / 310937 MEDLINE  
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[PMID]: 28960761
[Au] Autor:Kurth AE
[Ad] Address:Dean and Linda Koch Lorimer Professor, Yale University School of Nursing, West Haven, CT, USA.
[Ti] Title:Planetary Health and the Role of Nursing: A Call to Action.
[So] Source:J Nurs Scholarsh;, 2017 Sep 29.
[Is] ISSN:1547-5069
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:PURPOSE: To discuss the drivers of planetary health, responses, and the role of nursing in making health systems more resilient in an era of increasing stresses. As health providers, scientists, educators, and leaders, nurses have an obligation to prepare for climate change and other impacts of ecosystem strain on human health. DESIGN AND METHODS: Review of literature relevant to a planetary health framework. FINDINGS: Population displacement, new disease patterns and health needs, stresses on air quality, food production and water systems, and equity concerns, as well as the generation of sustainable energy, are all intimately related to health. CONCLUSIONS: Nurses are key to achieving the sustainable development goals that, like the planetary health framework, focus on environmental sustainability and human well-being. Nurses contribute to resilient health systems, as trusted leaders and providers of health care, and as advocates and change makers impacting the world. CLINICAL RELEVANCE: It is critical that nurses and other health professionals consider the multiple effects of ecosystem strain on human health, and anticipate population health and health system planning and response.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/jnu.12343

  4 / 310937 MEDLINE  
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[PMID]: 28960658
[Au] Autor:Abduljabbar TS; Al Amri MD; Al Rifaiy MQ; Al-Sowygh ZH; Vohra FA; Balous MA; Alqarni AS; Alotaibi AO
[Ad] Address:Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
[Ti] Title:Effects of Gingival Retraction Paste and Subsequent Cleaning with Hydrogen Peroxide on the Polymerization of Three Elastomeric Impression Materials: An In Vitro Study.
[So] Source:J Prosthodont;, 2017 Sep 27.
[Is] ISSN:1532-849X
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:PURPOSE: It has been hypothesized that there are no effects of Expasyl and subsequent cleaning with hydrogen peroxide on polymerization of selected commonly used impression materials. Therefore, the aim of this study was to evaluate the effect of Expasyl paste on the polymerization of three impression materials with and without subsequent cleaning using 3% hydrogen peroxide (H O ). MATERIALS AND METHODS: Nine standardized stainless steel specimens were fabricated. One hundred and eighty impressions were made using 3 materials (60 each) as follows: group I: poly(vinyl siloxane) (PVS) (Virtual); group II: polyether (Monophase); group III: polyether (Impregum). Groups were subdivided into 3 categories: control without intervention (n = 20), pre-application of Expasyl and subsequent 1-minute washing with water and air-drying (n = 20), and pre-application of Expasyl and subsequent cleaning with 3% H O for 10 seconds (n = 20). All impressions were made by one operator using auto-mixing cartridges under standardized conditions at room temperature. Evaluation of the polymerization inhibition was blindly and independently performed by three practitioners with comparable experience using a visual scale. The observation was subjectively categorized as noninhibited or inhibited. Data were tabulated and analyzed using Fisher's exact test with significance level set at p Ë‚ 0.05. RESULTS: Significant differences were found between the control group and the impressions made after contamination with Expasyl (p < 0.001). Polymerization inhibition of PVS and Impregum was similar (in 85% and 90% of the specimens, respectively) when washed with water. There was a statistically significant reduction in polymerization inhibition in both upon cleaning with H O (p < 0.001); however, polymerization inhibition occurred in 100% of Monophase specimens when contaminated with Expasyl despite the washing technique used. CONCLUSIONS: Under these in vitro conditions, it can be concluded that the remnants of Expasyl on specimens caused a significant polymerization inhibition of the 3 impression materials tested. Subsequent cleaning with 3% H O significantly reduced this inhibitory effect on polymerization. Expasyl should not be used with Monophase polyether material.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/jopr.12641

  5 / 310937 MEDLINE  
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[PMID]: 28960517
[Au] Autor:Herbig B; Jörres RA; Schierl R; Simon M; Langner J; Seeger S; Nowak D; Karrasch S
[Ad] Address:Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Ziemssenstr. 1, D-80336, Munich, Germany.
[Ti] Title:Psychological and cognitive effects of laser printer emissions: a controlled exposure study.
[So] Source:Indoor Air;, 2017 Sep 28.
[Is] ISSN:1600-0668
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:The possible impact of ultrafine particles from laser printers on human health is controversially discussed although there are persons reporting substantial symptoms in relation to these emissions. A randomized, single-blinded, cross-over experimental design with two exposure conditions (high-level and low-level exposure) was conducted with 23 healthy subjects, 14 subjects with mild asthma, and 15 persons reporting symptoms associated with laser printer emissions. To separate physiological and psychological effects a secondary physiologically-based categorization of susceptibility to particle effects was used. In line with results from physiological and biochemical assessments, we found no coherent, differential or clinically relevant effects of different exposure conditions on subjective complaints and cognitive performance in terms of attention, short-term memory and psychomotor performance. However, results regarding the psychological characteristics of participants and their situational perception confirm differences between the participants groups: Subjects reporting symptoms associated with laser printer emissions showed a higher psychological susceptibility for adverse reactions in line with previous results on persons with multiple chemical sensitivity or idiopathic environmental intolerance. In conclusion, acute psychological and cognitive effects of laser printer emissions were small and could be attributed only to different participant groups but not to differences in exposure conditions in terms of particle number concentrations. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/ina.12429

  6 / 310937 MEDLINE  
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[PMID]: 28960515
[Au] Autor:Guo Z; Chen S; Wang Z; Yang Z; Liu F; Xu Y; Wang J; Yi Y; Zhang H; Liao L; Chu PK; Yu XF
[Ad] Address:Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
[Ti] Title:Metal-Ion-Modified Black Phosphorus with Enhanced Stability and Transistor Performance.
[So] Source:Adv Mater;, 2017 Sep 28.
[Is] ISSN:1521-4095
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:Black phosphorus (BP), a burgeoning elemental 2D semiconductor, has aroused increasing scientific and technological interest, especially as a channel material in field-effect transistors (FETs). However, the intrinsic instability of BP causes practical concern and the transistor performance must also be improved. Here, the use of metal-ion modification to enhance both the stability and transistor performance of BP sheets is described. Ag spontaneously adsorbed on the BP surface via cation-π interactions passivates the lone-pair electrons of P thereby rendering BP more stable in air. Consequently, the Ag -modified BP FET shows greatly enhanced hole mobility from 796 to 1666 cm V s and ON/OFF ratio from 5.9 × 10 to 2.6 × 10 . The mechanisms pertaining to the enhanced stability and transistor performance are discussed and the strategy can be extended to other metal ions such as Fe , Mg , and Hg . Such stable and high-performance BP transistors are crucial to electronic and optoelectronic devices. The stability and semiconducting properties of BP sheets can be enhanced tremendously by this novel strategy.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1002/adma.201703811

  7 / 310937 MEDLINE  
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[PMID]: 28960513
[Au] Autor:Lan L; Qian XL; Lian ZW; Lin YB
[Ad] Address:Department of Architecture, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
[Ti] Title:Local body cooling to improve sleep quality and thermal comfort in a hot environment.
[So] Source:Indoor Air;, 2017 Sep 28.
[Is] ISSN:1600-0668
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:The effects of local body cooling on thermal comfort and sleep quality in a hot environment were investigated in an experiment with 16 male subjects. Sleep quality was evaluated subjectively, using questionnaires completed in the morning, and objectively, by analysis of electroencephalogram (EEG) signals that were continuously monitored during the sleeping period. Compared with no cooling, the largest improvement in thermal comfort and sleep quality was observed when the back and head (neck) were both cooled at a room temperature of 32°C. Back cooling alone also improved thermal comfort and sleep quality, although the effects were less than when cooling both back and head (neck). Mean sleep efficiency was improved from 84.6% in the no cooling condition to 95.3% and 92.8%, respectively, in these conditions, indicating good sleep quality. Head (neck) cooling alone slightly improved thermal comfort and subjective sleep quality and increased Stage N3 sleep, but did not otherwise improve sleep quality. The results show that local cooling applied to large body sections (back and head) could effectively maintain good sleep and improve thermal comfort in a hot environment. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/ina.12428

  8 / 310937 MEDLINE  
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[PMID]: 28960494
[Au] Autor:Xiao S; Li Y; Sung M; Wei J; Yang Z
[Ad] Address:Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, SAR, China.
[Ti] Title:A study of the probable transmission routes of MERS-CoV during the first hospital outbreak in the Republic of Korea.
[So] Source:Indoor Air;, 2017 Sep 28.
[Is] ISSN:1600-0668
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Infections caused by the Middle East respiratory syndrome coronavirus (MERS-CoV) are a serious health issue due to their prevalence and associated mortality. However, the transmission routes of the virus remain unclear and thus the current recommended control strategies are not evidence based. In this study, we investigated the transmission routes of MERS-CoV during the first nosocomial outbreak in the Republic of Korea in May 2015 using a multi-agent modelling framework. We identified seven hypothesised transmission modes based on the three main transmission routes (long-range airborne, close contact and fomite). The infection risks for each hypothesis were estimated using the multi-agent modelling framework. Least-squares fitting was conducted to compare the distribution of the predicted infection risk in the various scenarios with that of the reported attack rates and to identify the hypotheses with the best fit. In the scenarios in which the index patient was a super-spreader, our model simulations suggested that MERS-CoV probably spread via the long-range airborne route. However, it is possible that the index patient shed an average viral load comparable to the loads reported in the literature, and that transmission occurred via a combined long-range airborne and close contact route. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/ina.12430

  9 / 310937 MEDLINE  
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[PMID]: 28960493
[Au] Autor:Derbez M; Wyart G; Le Ponner E; Ramalho O; Ribéron J; Mandin C
[Ad] Address:University of Paris-Est, Scientific and Technical Center for Building (CSTB), Health and Comfort Direction, French Observatory of Indoor Air Quality (OQAI), 84, avenue Jean Jaurès - Champs-sur-Marne, 77 447, Marne la Vallée, Cedex, France.
[Ti] Title:Indoor air quality in energy-efficient dwellings: levels and sources of pollutants.
[So] Source:Indoor Air;, 2017 Sep 28.
[Is] ISSN:1600-0668
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Worldwide, public policies are promoting energy-efficient buildings and accelerating the thermal renovation of existing buildings. The effects of these changes on the indoor air quality (IAQ) in these buildings remain insufficiently understood. In this context, a field study was conducted in 72 energy-efficient dwellings to describe the pollutants known to be associated with health concerns. Measured parameters included the concentrations of 19 volatile organic compounds and aldehydes, nitrogen dioxide, particulate matter (PM ), radon, temperature and relative humidity. The air stuffiness index and night-time air exchange rate were calculated from the monitored carbon dioxide (CO ) concentrations. Indoor and outdoor measurements were performed at each dwelling during one week in each of the two following seasons: heating and non-heating. Moreover, questionnaires were completed by the occupants to characterize the building, equipment, household and occupants' habits. Perspective on our results was provided by previous measurements made in low-energy European dwellings. Statistical comparisons with the French housing stock and a pilot study showed higher concentrations of terpenes, i.e., alpha-pinene and limonene, and hexaldehyde in our study than in previous studies. Alpha-pinene and hexaldehyde are emitted by wood or wood-based products used for the construction, insulation, decoration and furnishings of the dwellings, whereas limonene is more associated with discontinuous sources related to human activities. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/ina.12431

  10 / 310937 MEDLINE  
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[PMID]: 28960492
[Au] Autor:Valkonen M; Täubel M; Pekkanen J; Tischer C; Rintala H; Zock JP; Casas L; Probst-Hensch N; Forsberg B; Holm M; Janson C; Pin I; Gislason T; Jarvis D; Heinrich J; Hyvärinen A
[Ad] Address:National Institute for Health and Welfare, Living Environment and Health Unit, Kuopio, Finland.
[Ti] Title:"Microbial characteristics in homes of asthmatic and non-asthmatic adults in the ECRHS cohort".
[So] Source:Indoor Air;, 2017 Sep 27.
[Is] ISSN:1600-0668
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Microbial exposures in homes of asthmatic adults have been rarely investigated; specificities and implications for respiratory health are not well understood. OBJECTIVE: The objectives of this study were to investigate associations of microbial levels with asthma status, asthma symptoms, bronchial hyperresponsiveness (BHR), and atopy. MATERIAL AND METHODS: Mattress dust samples of 199 asthmatics and 198 control subjects from seven European countries participating in the European Community Respiratory Health Survey II study were analysed for fungal and bacterial cell wall components and individual taxa. RESULTS: We observed trends for protective associations of higher levels of mostly bacterial markers. Increased levels of muramic acid, a cell wall component predominant in Gram positive bacteria, tended to be inversely associated with asthma [OR's for different quartiles: II 0.71 (0.39-1.30), III 0.44 (0.23-0.82) and IV 0.60 (0.31-1.18) p for trend 0.07] and with asthma score (p for trend 0.06) and with atopy (p for trend 0.02). These associations were more pronounced in Northern Europe. CONCLUSIONS: This study among adults across Europe supports a potential protective effect of Gram positive bacteria in mattress dust and points out that this may be more pronounced in areas where microbial exposure levels are generally lower. This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1709
[Cu] Class update date: 170929
[Lr] Last revision date:170929
[St] Status:Publisher
[do] DOI:10.1111/ina.12427


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